Acetic Acid → N-[(2S)-2-(tert-butoxycarbonylamino)-3-(phenylmethoxy)propyl]-N-[2-(tert-butoxycarbonylamino)-3-(phenylmethoxy)Propyl]amine

HRID 402984ノート

反応式

HRID 402984 の反応式
[C:1]([O:5][C:6]([NH:8][C@H:9]([CH2:12][O:13][CH2:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)[CH2:10][NH2:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:21]([O:25][C:26]([NH:28][C@@H:29]([CH2:32][O:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[CH:30]=O)=[O:27])([CH3:24])([CH3:23])[CH3:22].C([BH3-])#N.[Na+].C(O)(=O)C>C(O)C>[C:1]([O:5][C:6]([NH:8][C@H:9]([CH2:12][O:13][CH2:14][C:15]1[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1)[CH2:10][NH:11][CH2:30][CH:29]([NH:28][C:26]([O:25][C:21]([CH3:22])([CH3:24])[CH3:23])=[O:27])[CH2:32][O:33][CH2:34][C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

6

反応物 4

HCID 176Acetic AcidHCID 5003444Sodium cyanoborohydrideHCID 11196731(S)-tert-butyl 3-(benzyloxy)-1-oxopropan-2-ylcarbamateHCID 60204732N2-Boc-(S)-3-(benzyloxy)propane-1,2-diamine

生成物 1

HCID 66639988N-[(2S)-2-(tert-butoxycarbonylamino)-3-(phenylmethoxy)propyl]-N-[2-(tert-butoxycarbonylamino)-3-(phenylmethoxy)Propyl]amine収率 22.1%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

The product from Example 17B (0.35 g, 1.25 mmol) and the product from Example 17A (0.36 g, 1.29 mmol) in absolute ethanol (12 mL) were treated with sodium cyanoborohydride (94 mg, 1.50 mmol) and a catalytic amount of acetic acid. The resulting mixture was stirred at ambient temperature overnight. The mixture was partitioned between water (40 mL) and ethyl acetate (3×40 mL). The organic layers were combined, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was subjected to column chromatography on silica gel (hexanes:ethyl acetate, 1:1) to provide the title compound (0.15 g, 22%).

後処理

  1. customThe mixture was partitioned between water (40 mL) and ethyl acetate (3×40 mL)
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-c3043b3eb76c45b19f141cbb971558a3
出典データセット
uspto-grants-2014_06
特許番号
US08741938B2

反応ノート

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